[Freeswitch-users] [OL]Re: best way to receive FAXs

[Mitch Capper]

I have used flowroute very successfully for fax sending and receiving.  The
solution I use includes switching various options on and off for each try
to have the most success without a complete failure in years (when sending
to a fax machine that is).   I have posted some stats that are in the
mailing list archives and some details in the wiki.   soft faxing seems to
work without issue with high reliability.

~Mitch


On Fri, Jul 11, 2014 at 9:30 AM, <bruce at sqls.net> wrote:

>
> Thanks for the information.  Would you be willing to share more
> information? Like the SIP providers you're using, type of internet
> connection, hardware, etc?  I would understand if you can't share
> everything.  But seeing that you seem to be having excellent success I
> would be very interested to know your setup in more detail - might give me
> some ideas on things to implement or improve.
>
> I do like the combo of FreeSWITCH/SpanDSP  + Scripts.  I've really liked
> the lua scripting integration that lets me add console commands and stats
> info right into the fs_cli tool.  So, very encouraging news.
>
>
>
> ------ Original Message ------
> From: "François Delawarde" <fdelawarde at wirelessmundi.com>
> To: freeswitch-users at lists.freeswitch.org
> Sent: 7/11/2014 10:53:00 AM
> Subject: Re: [Freeswitch-users] [OL]Re: best way to receive FAXs
>
>
> After extensive testing using decent SIP providers (with or without T38),
> we have much better success with spandsp than hylafax. We even have a
> better success rate compared to most combinations of ATA + physical fax
> machine we tested!!
>
> No tweaks needed, and using default values (use-ecm=true,
> disable-v17=false).
>
> Feature-wise it's not really comparable to a Hylafax solution, but with a
> few scripts to manage queues and such, you can build a very nice solution
> able to handle a huge fax volume!
>
> Regards,
>   --
> François Delawarde <fdelawarde at wirelessmundi.com>
> Wireless Mundi S.L.
>
> On Fri, 2014-07-11 at 15:13 +0000, bruce at sqls.net wrote:
>
>
>
> Great, thanks for the idea! I'll definitely give this a try as well.
>
>
>
> Also, great looking project :) I'll take a look at it as well. I've been
> wanting to learn more about golang too. I've used Hylafax in the past but I
> haven't used it lately - I probably should take another look at that as
> well.
>
>
>
>
>
>
>
> ------ Original Message ------
>
> From: "Markus Lindenberg" <markus.lindenberg at gmail.com>
>
> To: "FreeSWITCH Users Help" <freeswitch-users at lists.freeswitch.org>
>
> Sent: 7/11/2014 8:33:00 AM
>
> Subject: Re: [Freeswitch-users] [OL]Re: best way to receive FAXs
>
>
>
>
>  On Fri, Jul 11, 2014 at 3:11 PM, <bruce at sqls.net> wrote:
>
> For received faxes I get a lot more failures then I would like however,
> close to 15%
>
>
> I had some success with disabling T.38 for received calls. If i see that
> negotiation failed multiple times or the fax aborts with errors during page
> transmission, I save the callerid and disable T.38 when the caller retries.
> Most cases that were not successful with T.38 worked fine with soft modem.
> See
> https://github.com/gonicus/gofaxip#fallback-from-t38-to-spandsp-softmodem
> for details.
>
>
>
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